Presented to you are grids of shapes, and you must link these, triangle-to-triangle, square-to-square, by dragging your finger between them until all the shapes are linked and the level, of which there are hundreds, is over. Complete one set of 25 levels and gain access to the next, harder, set.

It's immediately easy to understand, and taught to you at a steady pace - LYNE never wants to confuse you, or leave you angry and bemused whilst trying to understand a new mechanic. You are given a safe, easy space to get the hang of new concepts before you're thrown into the deep end.